The hot water pipe of a heating system, 20 m long and 8 cm in diameter, was buried 80 cm below the soil surface. The outer surface temperature of the pipe is 60 °C. Find the heat loss rate in the pipe by taking the surface temperature of the soil as 5°C and the thermal conductivity of the soil at that location as 0.9 W/m°C.

The hot water pipe of a heating system, 20 m long and 8 cm in diameter, was buried 80 cm below the soil surface. The outer surface temperature of the pipe is 60 °C. Find the heat loss rate in the pipe by taking the surface temperature of the soil as 5°C and the thermal conductivity of the soil at that location as 0.9 W/m°C.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter2: Steady Heat Conduction

Section: Chapter Questions

Problem 2.60P

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